I installed a package with pamac, which also did an update. After rebooting the package would not run, so I tried a pamac update which failed.
I then ran pacman -Syyu and got the following error.
:: Synchronising package databases...
core 163.5 KiB 817 KiB/s 00:00 [######################] 100%
extra 1857.0 KiB 27.1 MiB/s 00:00 [######################] 100%
community 7.6 MiB 37.9 MiB/s 00:00 [######################] 100%
multilib 170.6 KiB 9.80 MiB/s 00:00 [######################] 100%
error: failed retrieving file 'core.db' from mirror.ibakerserver.pt : The requested URL returned error: 530
error: failed retrieving file 'extra.db' from mirror.ibakerserver.pt : The requested URL returned error: 530
error: failed retrieving file 'community.db' from mirror.ibakerserver.pt : The requested URL returned error: 530
warning: too many errors from mirror.ibakerserver.pt, skipping for the remainder of this transaction
:: Starting full system upgrade...
there is nothing to do
Ran sudo pacman-mirrors -g
Which fixed the problem.
And the mirror.ibakerserver.pt was not on the mirror list - not sure how it got onto my system.